The Heartland Chapter is a proud member of the Indoor Environments Association (AARST.) We are an all volunteer, non-profit organization comprised of licensed and certified radon professionals from the states of Missouri, Iowa, Nebraska and Kansas. The Heartland Chapter is dedicated to saving lives by protecting the public through the promotion of radon awareness and radon testing and mitigation by licensed and/or certified radon professionals.We strives to serve the educational, technical and professional needs of our Chapter members and are committed to supporting the mission of IEA National.

The Heartland Chapter of IEA member state of Iowa ranks first in the United States for high average radon levels with the state of Nebraska ranking fifth.

With radon ever-prevalent in our communities, Heartland Chapter IEA members understand the regional conditions, seasonal patterns, geographical anomalies and other factors which influence radon measurement and radon mitigation systems.  Radon is a silent killer. Working with a dedicated and licensed professional is imperative.

AARST is now

Indoor Environments Association™

Indoor Environments Association is a nonprofit, professional organization of members who are dedicated to the highest standard of excellence and ethical performance of hazard identification and abatement of radon, chemical vapor intrusion, and other contaminants of concern in the built environment. The organization primarily strives to advance the interests of its members through developing industry standards, certifying technical proficiency, enabling advancement of public policy, and communicating health risks to the public.



Jim Medley, Radon Systems 4U LLC;

Chapter Vice President (by state):

Manhattan, KS

Wes Hodgden, Midwetst Radon;

St.Louis, MO

Cherie Summa, St. Louis

Omaha, NE

Open Position

Indianola, IA

Tom Selgrade, 


Secretary- open


Chad Robinson, 


The Heartland Chapter's parent organization, Indoor Environments Association, formerly the American Association of Radon Scientists and Technologists is a 501(c) (6) non-profit organization.

*Please note any donations made are not tax deductible for federal tax purposes.

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